LOCATION.--Lat 40°48'12.1", long
73°00'38.9" referenced to North American Datum of
1983, Suffolk County, NY, Hydrologic Unit 02030202, at west
side of Old Medford Avenue, 237 ft north of Cedar Avenue,
Medford. Well is located in wooded area.
WELL CHARACTERISTICS.--Depth 50 ft. Upper casing
diameter 2 in; top of first opening undefined, bottom of last
opening undefined. Screen assumed at bottom.
DATUM.--Land-surface datum is 71.5 ft above North
American Vertical Datum of 1988. Measuring point: Top of
casing, 0.77 ft above land-surface datum, 72.57 ft above
land-surface datum, Jul. 16, 1942 to Sep. 23, 2024; Top of
casing, 0.77 ft above land-surface datum, 71.52 ft above
land-surface datum, Sep. 23, 2024 to present.
PERIOD OF RECORD.--April 1942 to current year.
Unpublished records for January 1907 to July 1909 are available
in files of the U.S. Geological Survey.
GAGE.--Water-level recorder installed August 2014;
15-minute recording interval. Periodic manual measurements by
USGS personnel.
EXTREMES FOR PERIOD OF RECORD.--Highest water level
measured, 40.00 ft above NAVD of 1988 (41.05 ft above NGVD of
1929), Apr. 23, 2010; lowest measured, 33.05 ft above NAVD of
1988 (34.10 ft above NGVD of 1929), Oct. 17, 2002.